/* ============================================================
   智链网络验证 · 官网样式
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --ink: #04070d;
  --ink-2: #070b14;
  --ink-3: #0b111d;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-2: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.085);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #edf2f9;
  --text-2: #a9b5c7;
  --muted: #7e8ba0;
  --accent: #2fe3c3;
  --accent-2: #45c4f6;
  --accent-3: #8b8cf7;
  --accent-soft: rgba(47, 227, 195, 0.12);
  --grad: linear-gradient(115deg, #2fe3c3 0%, #45c4f6 50%, #8b8cf7 100%);
  --grad-text: linear-gradient(100deg, #7bf7df 0%, #6fd6ff 45%, #b7b8ff 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, "SFMono-Regular", monospace;
}

html { scroll-behavior: smooth; scroll-padding-top: 92px; }

body {
  font-family: var(--font);
  background: var(--ink);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(760px 520px at 8% -10%, rgba(47, 227, 195, 0.13), transparent 62%),
    radial-gradient(820px 620px at 92% 4%, rgba(69, 196, 246, 0.11), transparent 62%),
    radial-gradient(900px 700px at 50% 108%, rgba(139, 140, 247, 0.09), transparent 64%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 0%, transparent 78%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: rgba(47, 227, 195, 0.28); color: #fff; }

.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; position: relative; z-index: 1; }
.container-wide { width: min(1320px, calc(100% - 48px)); margin: 0 auto; position: relative; z-index: 1; }

/* ================= 顶栏 ================= */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  height: 72px; display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
}
.site-header.scrolled {
  background: rgba(4, 7, 13, 0.78);
  backdrop-filter: saturate(150%) blur(18px);
  -webkit-backdrop-filter: saturate(150%) blur(18px);
  border-bottom-color: var(--line);
}
.site-header .container-wide { display: flex; align-items: center; gap: 34px; height: 100%; }

.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(150deg, rgba(47, 227, 195, .22), rgba(69, 196, 246, .12));
  border: 1px solid rgba(47, 227, 195, .32);
  display: grid; place-items: center;
  box-shadow: 0 0 24px rgba(47, 227, 195, .18), inset 0 0 18px rgba(47, 227, 195, .08);
}
.brand-mark svg { width: 21px; height: 21px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 16px; letter-spacing: .06em; font-weight: 700; }
.brand-text span { font-size: 9.5px; letter-spacing: .22em; color: var(--muted); text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav > a, .nav .nav-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 13px; border-radius: 9px;
  font-size: 14px; color: var(--text-2);
  transition: color .2s, background .2s;
}
.nav > a:hover, .nav .nav-trigger:hover { color: #fff; background: rgba(255, 255, 255, .05); }
.nav a.active { color: #fff; }
.nav a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 2px; height: 2px;
  border-radius: 2px; background: var(--grad);
}
.nav > a { position: relative; }

.nav-item-dropdown { position: relative; }
.nav-trigger svg { width: 11px; height: 11px; opacity: .65; transition: transform .2s; }
.nav-item-dropdown:hover .nav-trigger svg { transform: rotate(180deg); }
.dropdown {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translate(-50%, 6px);
  width: 292px; padding: 8px;
  background: rgba(9, 14, 24, .97);
  border: 1px solid var(--line-strong); border-radius: 14px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
  opacity: 0; visibility: hidden; transition: .22s;
  backdrop-filter: blur(18px);
}
.nav-item-dropdown:hover .dropdown,
.nav-item-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown a {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 11px 12px; border-radius: 10px; transition: background .18s;
}
.dropdown a:hover { background: rgba(255, 255, 255, .05); }
.dropdown .di {
  width: 30px; height: 30px; flex: none; border-radius: 8px;
  display: grid; place-items: center; font-size: 13px;
  background: rgba(47, 227, 195, .1); border: 1px solid rgba(47, 227, 195, .2);
}
.dropdown b { display: block; font-size: 13.5px; color: var(--text); font-weight: 600; }
.dropdown small { display: block; font-size: 11.5px; color: var(--muted); line-height: 1.5; margin-top: 1px; }

.header-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.header-ghost { font-size: 13.5px; color: var(--text-2); padding: 8px 12px; border-radius: 8px; }
.header-ghost:hover { color: #fff; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 11px; font-size: 14px; font-weight: 600;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad); color: #04211d;
  box-shadow: 0 8px 30px rgba(47, 227, 195, .24);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(47, 227, 195, .32); }
.btn-ghost {
  border: 1px solid var(--line-strong); color: var(--text);
  background: rgba(255, 255, 255, .03);
}
.btn-ghost:hover { border-color: rgba(47, 227, 195, .45); color: #fff; background: rgba(47, 227, 195, .06); }
.btn-sm { padding: 9px 15px; font-size: 13px; border-radius: 9px; }
.btn svg { width: 15px; height: 15px; }

.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); place-items: center; }
.nav-toggle span { display: block; width: 16px; height: 1.5px; background: var(--text); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 16px; height: 1.5px; background: var(--text); transition: .2s;
}
.nav-toggle span::before { top: -5px; } .nav-toggle span::after { top: 5px; }

/* ================= 通用区块 ================= */
.section { padding: 104px 0; position: relative; }
.section-tight { padding: 72px 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: linear-gradient(90deg, var(--accent), transparent); }
.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }
.section-head h2 {
  font-size: clamp(28px, 3.4vw, 44px); line-height: 1.22; letter-spacing: -.02em;
  font-weight: 700; margin-bottom: 16px;
}
.section-head h2 em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.section-head p { color: var(--text-2); font-size: 16px; line-height: 1.85; }
.section-head.center p { margin: 0 auto; }

/* ================= 首屏 ================= */
.hero { position: relative; padding: 156px 0 72px; overflow: hidden; }
.hero .container-wide { display: grid; grid-template-columns: 1.02fr .98fr; gap: 56px; align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 13px 6px 7px; border-radius: 999px;
  border: 1px solid rgba(47, 227, 195, .22); background: rgba(47, 227, 195, .07);
  font-size: 12.5px; color: #bff8ec; margin-bottom: 26px;
}
.hero-tag i {
  font-style: normal; font-size: 10px; font-weight: 700; letter-spacing: .08em;
  padding: 3px 8px; border-radius: 999px; background: var(--accent); color: #03231e;
}
.h1-brand {
  display: block; font-size: 13px; letter-spacing: .3em; color: var(--accent);
  font-weight: 600; margin-bottom: 14px; text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(38px, 5vw, 64px); line-height: 1.13; letter-spacing: -.035em;
  font-weight: 800; margin-bottom: 24px;
}
.hero h1 .grad { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero h1 .thin { font-weight: 300; color: #cbd6e6; }
.hero-sub { font-size: 17px; line-height: 1.9; color: var(--text-2); max-width: 560px; margin-bottom: 34px; }
.hero-sub b { color: var(--text); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-bottom: 38px; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 22px; color: var(--muted); font-size: 12.5px; }
.hero-notes span { display: inline-flex; align-items: center; gap: 7px; }
.hero-notes svg { width: 14px; height: 14px; color: var(--accent); }

.hero-visual { position: relative; min-height: 520px; }
.shot-frame {
  border: 1px solid var(--line-strong); border-radius: 14px; overflow: hidden;
  background: #0a0f19; box-shadow: var(--shadow);
}
.shot-bar {
  height: 34px; display: flex; align-items: center; gap: 7px; padding: 0 13px;
  background: #0d1320; border-bottom: 1px solid var(--line);
}
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: #2a3446; }
.shot-bar i:nth-child(1) { background: #ff5f57; } .shot-bar i:nth-child(2) { background: #febc2e; } .shot-bar i:nth-child(3) { background: #28c840; }
.shot-bar span {
  margin-left: 9px; font-family: var(--mono); font-size: 10px; color: var(--muted);
  background: rgba(255, 255, 255, .05); padding: 2px 10px; border-radius: 5px;
}
.hero-main-shot { position: absolute; top: 26px; right: 0; width: 108%; max-width: 720px; z-index: 1; transform: perspective(1400px) rotateY(-4deg) rotateX(1deg); }
.hero-main-shot img { width: 100%; }
.hero-float {
  position: absolute; z-index: 3; border: 1px solid var(--line-strong); border-radius: 14px;
  background: rgba(9, 14, 24, .94); box-shadow: 0 22px 60px rgba(0, 0, 0, .55);
  backdrop-filter: blur(14px);
}
.hero-float.client { width: 42%; max-width: 250px; right: -4px; bottom: -14px; overflow: hidden; }
.hero-float.client img { width: 100%; }
.hero-float.badge-card { left: -10px; bottom: 54px; padding: 14px 16px; display: flex; gap: 12px; align-items: center; }
.hero-float.badge-card .ring { width: 42px; height: 42px; position: relative; }
.hero-float.badge-card .ring svg { width: 42px; height: 42px; transform: rotate(-90deg); }
.hero-float.badge-card .ring b {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--mono); font-size: 11px; color: var(--accent);
}
.hero-float.badge-card p { font-size: 12px; color: var(--text-2); line-height: 1.5; }
.hero-float.badge-card p b { display: block; color: var(--text); font-size: 13px; }
.hero-float.badge-card p span { color: var(--accent); font-family: var(--mono); font-size: 10.5px; }

/* 统计条 */
.stats-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .015); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 30px 12px; text-align: center; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; }
.stat b { display: block; font-size: clamp(26px, 2.8vw, 36px); font-weight: 700; letter-spacing: -.02em; font-family: var(--mono); }
.stat b em { font-style: normal; font-size: .52em; color: var(--accent); margin-left: 2px; }
.stat span { display: block; font-size: 12.5px; color: var(--muted); margin-top: 4px; letter-spacing: .04em; }

/* ================= 双端产品 ================= */
.duo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.product-card {
  position: relative; border: 1px solid var(--line); border-radius: 22px; overflow: hidden;
  background: linear-gradient(165deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .015) 46%, transparent);
  transition: transform .35s, border-color .35s, box-shadow .35s;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); border-color: rgba(47, 227, 195, .32); box-shadow: 0 34px 90px rgba(0, 0, 0, .55); }
.product-card .pc-top { padding: 34px 34px 0; }
.pc-kicker { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.pc-kicker span {
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em;
  color: var(--muted); text-transform: uppercase;
}
.pc-icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(47, 227, 195, .09); border: 1px solid rgba(47, 227, 195, .22);
}
.pc-icon svg { width: 22px; height: 22px; }
.product-card h3 { font-size: 25px; letter-spacing: -.01em; margin-bottom: 10px; }
.product-card h3 small { font-size: 12px; font-weight: 500; color: var(--muted); margin-left: 8px; letter-spacing: .04em; }
.product-card .pc-desc { color: var(--text-2); font-size: 14.5px; line-height: 1.85; min-height: 78px; }
.pc-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 9px 14px; margin: 20px 0 24px; }
.pc-list li { font-size: 13px; color: var(--text-2); display: flex; gap: 8px; align-items: center; }
.pc-list li svg { width: 13px; height: 13px; color: var(--accent); flex: none; }
.pc-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--accent); font-weight: 600; margin-bottom: 30px; }
.pc-link svg { width: 14px; height: 14px; transition: transform .2s; }
.product-card:hover .pc-link svg { transform: translateX(4px); }
.pc-shot { margin-top: auto; padding: 0 22px; position: relative; }
.pc-shot::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 38%;
  background: linear-gradient(transparent, rgba(4, 7, 13, .9)); pointer-events: none;
}
.pc-shot .shot-frame { border-radius: 12px 12px 0 0; border-bottom: 0; transform: translateY(2px); }
.pc-shot img { width: 100%; height: 292px; object-fit: cover; object-position: left top; }

/* ================= 功能网格 ================= */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature {
  position: relative; padding: 28px 26px; border: 1px solid var(--line); border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 255, 255, .04), transparent 60%);
  transition: border-color .3s, transform .3s, background .3s;
}
.feature:hover { border-color: rgba(47, 227, 195, .28); transform: translateY(-3px); background: linear-gradient(160deg, rgba(47, 227, 195, .06), transparent 65%); }
.feature .fi {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255, 255, 255, .045); border: 1px solid var(--line);
  margin-bottom: 18px;
}
.feature .fi svg { width: 18px; height: 18px; color: var(--accent); }
.feature h3 { font-size: 16.5px; margin-bottom: 8px; font-weight: 600; }
.feature p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.feature .num {
  position: absolute; top: 26px; right: 24px; font-family: var(--mono);
  font-size: 11px; color: rgba(255, 255, 255, .18);
}

/* ================= 流程 ================= */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.flow-step { padding: 30px 26px; border-left: 1px solid var(--line); position: relative; background: rgba(255, 255, 255, .012); }
.flow-step:first-child { border-left: 0; }
.flow-step .fs-no {
  font-family: var(--mono); font-size: 11px; color: var(--accent);
  letter-spacing: .12em; margin-bottom: 16px; display: flex; align-items: center; gap: 8px;
}
.flow-step .fs-no::after { content: ""; height: 1px; flex: 1; background: linear-gradient(90deg, rgba(47, 227, 195, .4), transparent); }
.flow-step h3 { font-size: 16px; margin-bottom: 8px; }
.flow-step p { font-size: 13px; color: var(--muted); line-height: 1.75; }
.flow-step code { font-family: var(--mono); font-size: 11.5px; color: #9df3e2; background: rgba(47, 227, 195, .08); padding: 1px 6px; border-radius: 4px; }

/* ================= 语言跑马灯 ================= */
.lang-marquee { overflow: hidden; position: relative; padding: 6px 0; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.lang-track { display: flex; gap: 12px; width: max-content; animation: marquee 42s linear infinite; }
.lang-marquee:hover .lang-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.lang-chip {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px;
  border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .025);
  white-space: nowrap;
}
.lang-chip i {
  width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center;
  font-style: normal; font-family: var(--mono); font-size: 10px; font-weight: 700;
  color: var(--accent); background: rgba(47, 227, 195, .09); border: 1px solid rgba(47, 227, 195, .18);
}
.lang-chip b { font-size: 13px; font-weight: 500; }
.lang-chip span { font-size: 10px; color: var(--muted); font-family: var(--mono); }
.lang-chip.ok span { color: #43e0a0; }

/* ================= 文档中心 ================= */
.doc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.doc-card {
  padding: 28px 26px; border: 1px solid var(--line); border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 255, 255, .045), transparent 62%);
  display: flex; flex-direction: column; min-height: 218px;
  transition: transform .3s, border-color .3s, background .3s;
}
.doc-card:hover { transform: translateY(-4px); border-color: rgba(69, 196, 246, .34); background: linear-gradient(160deg, rgba(69, 196, 246, .07), transparent 65%); }
.doc-card .dc-tag { font-family: var(--mono); font-size: 10.5px; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 22px; }
.doc-card h3 { font-size: 17.5px; margin-bottom: 9px; display: flex; align-items: center; gap: 8px; }
.doc-card h3 svg { width: 15px; height: 15px; color: var(--accent); }
.doc-card p { font-size: 13.5px; color: var(--muted); line-height: 1.8; flex: 1; }
.doc-card .dc-go { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--accent); margin-top: 18px; }
.doc-card .dc-go svg { width: 13px; height: 13px; transition: transform .2s; }
.doc-card:hover .dc-go svg { transform: translateX(4px); }

/* ================= 代码窗口 ================= */
.code-window { border: 1px solid var(--line-strong); border-radius: 16px; overflow: hidden; background: #080d16; box-shadow: var(--shadow); }
.code-window .cw-bar { display: flex; align-items: center; gap: 8px; padding: 11px 16px; border-bottom: 1px solid var(--line); background: #0b111c; }
.code-window .cw-bar i { width: 8px; height: 8px; border-radius: 50%; background: #2b3547; }
.code-window .cw-bar span { font-family: var(--mono); font-size: 11px; color: var(--muted); margin-left: 8px; }
.code-window pre { padding: 22px 24px; overflow-x: auto; font-family: var(--mono); font-size: 12.6px; line-height: 1.85; color: #c9d6e8; }
.code-window .c { color: #5f7288; }
.code-window .k { color: #7bdff2; }
.code-window .s { color: #a8f0c6; }
.code-window .n { color: #f5c98a; }
.code-window .fn { color: #b9b5ff; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .section-head { margin-bottom: 30px; }
.check-list { list-style: none; display: grid; gap: 13px; }
.check-list li { display: flex; gap: 11px; font-size: 14px; color: var(--text-2); align-items: flex-start; }
.check-list li svg { width: 17px; height: 17px; color: var(--accent); flex: none; margin-top: 3px; }
.check-list li b { color: var(--text); font-weight: 600; }

/* ================= 五层防线 ================= */
.defense-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 22px; align-items: start; }
.attack-chain {
  border: 1px solid rgba(255, 120, 120, .14); border-radius: 18px; padding: 24px 24px 18px;
  background: linear-gradient(165deg, rgba(255, 95, 95, .06), rgba(255, 255, 255, .015) 55%, transparent);
}
.ac-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 8px; }
.ac-head span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; color: #ff8a8a; }
.ac-head b { font-size: 11.5px; color: var(--muted); font-weight: 500; }
.attack-item { display: flex; align-items: center; gap: 13px; padding: 13px 2px; border-bottom: 1px dashed rgba(255, 255, 255, .08); }
.attack-item:last-child { border-bottom: 0; padding-bottom: 4px; }
.ai-no { font-family: var(--mono); font-size: 10.5px; color: #ff9a9a; width: 20px; flex: none; }
.attack-item b { display: block; font-size: 13.8px; font-weight: 600; color: #f3dcdc; }
.attack-item small { display: block; font-size: 11.3px; color: var(--muted); margin-top: 1px; }
.attack-item em {
  margin-left: auto; font-style: normal; font-family: var(--mono); font-size: 9.8px;
  color: #7ef0d0; background: rgba(47, 227, 195, .07); border: 1px solid rgba(47, 227, 195, .2);
  padding: 2px 8px; border-radius: 999px; white-space: nowrap;
}
.layer-stack { display: grid; gap: 9px; }
.layer {
  display: grid; grid-template-columns: 46px 1fr; gap: 14px; padding: 15px 18px;
  border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, .022);
  transition: border-color .25s, background .25s, transform .25s;
}
.layer:hover { border-color: rgba(47, 227, 195, .32); background: rgba(47, 227, 195, .04); transform: translateX(3px); }
.layer .ln { font-family: var(--mono); font-size: 16px; color: var(--accent); padding-top: 2px; }
.layer h3 { font-size: 14.5px; margin: 0 0 3px; }
.layer h3 span { color: var(--muted); font-weight: 400; font-size: 11.5px; margin-left: 6px; letter-spacing: .04em; }
.layer p { font-size: 12.3px; color: var(--muted); line-height: 1.75; margin: 0 0 7px; }
.layer .lt { display: flex; flex-wrap: wrap; gap: 5px; }
.layer .lt span {
  font-size: 9.8px; color: #9fb0c6; border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 4px; padding: 1px 6px; font-family: var(--mono);
}
.defense-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 26px;
  margin-top: 22px; padding: 18px 22px; border: 1px solid rgba(47, 227, 195, .18);
  background: rgba(47, 227, 195, .04); border-radius: 13px;
}
.defense-foot p { font-size: 12.8px; color: var(--text-2); margin: 0; line-height: 1.8; }
.defense-foot b { color: var(--text); }

/* ================= 市场对比 ================= */
.market-callout {
  display: flex; align-items: center; gap: 24px; margin-bottom: 22px; padding: 20px 24px;
  border: 1px solid rgba(47, 227, 195, .26); border-radius: 16px;
  background:
    radial-gradient(460px 180px at 6% 0%, rgba(47, 227, 195, .14), transparent 72%),
    rgba(255, 255, 255, .02);
}
.market-callout .mc-99 {
  font-family: var(--mono); font-size: 58px; font-weight: 800; line-height: 1;
  letter-spacing: -.05em; background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.market-callout .mc-99 span { font-size: 24px; }
.market-callout b { display: block; font-size: 15px; margin-bottom: 3px; }
.market-callout p { margin: 0; font-size: 12.8px; color: var(--muted); line-height: 1.75; }
.market-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; }
.market-table { width: 100%; min-width: 700px; border-collapse: collapse; font-size: 13px; }
.market-table th {
  background: rgba(255, 255, 255, .04); color: var(--text-2); text-align: left;
  font-size: 11.5px; letter-spacing: .06em; font-weight: 600; padding: 13px 18px;
  border-bottom: 1px solid var(--line);
}
.market-table th:nth-child(3) { color: var(--accent); }
.market-table td { padding: 13px 18px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--muted); }
.market-table tr:last-child td { border-bottom: 0; }
.market-table td:first-child { color: var(--text); font-weight: 600; width: 20%; }
.market-table td:nth-child(3) { color: var(--text-2); }
.market-table .yn { font-family: var(--mono); font-weight: 700; margin-right: 6px; }
.market-table .yn.yes { color: #43e0a0; }
.market-table .yn.no { color: #ff8a8a; }
.market-note { font-size: 11.5px; color: #5f6d80; margin: 14px 0 0; line-height: 1.7; }
.market-hint { display: none; font-size: 11.5px; color: var(--muted); margin: 8px 0 0; text-align: center; }

/* ================= SEO 简介 ================= */
.seo-block { border-top: 1px solid var(--line); padding: 56px 0 60px; background: rgba(255, 255, 255, .012); }
.seo-block h2 { font-size: 22px; margin-bottom: 14px; }
.seo-block p { font-size: 13.2px; line-height: 1.95; color: var(--muted); max-width: 940px; margin: 0 0 10px; }
.seo-block a { color: var(--accent); border-bottom: 1px solid rgba(47, 227, 195, .35); }
.seo-block a:hover { border-bottom-color: var(--accent); }

/* ================= 安全架构 ================= */
.security-band {
  border: 1px solid var(--line); border-radius: 22px; overflow: hidden;
  background: linear-gradient(120deg, rgba(47, 227, 195, .06), rgba(69, 196, 246, .04) 45%, rgba(139, 140, 247, .05));
  padding: 46px;
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center;
}
.security-band h2 { font-size: clamp(24px, 2.6vw, 34px); line-height: 1.28; margin-bottom: 14px; }
.security-band h2 em { font-style: normal; color: var(--accent); }
.security-band p { color: var(--text-2); font-size: 14.5px; line-height: 1.85; }
.security-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sec-point { padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: rgba(5, 9, 16, .45); }
.sec-point b { display: block; font-size: 13px; margin-bottom: 3px; }
.sec-point span { font-size: 11.5px; color: var(--muted); font-family: var(--mono); }

/* ================= 截图画廊 ================= */
.gallery { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; }
.gallery-solo { grid-template-columns: 1fr; margin-bottom: 18px; }
.gallery-solo .g-item img { height: 430px; object-fit: cover; object-position: top center; }
.gallery-strip { grid-template-columns: repeat(3, 1fr); }
.gallery .g-item { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #0a0f19; cursor: zoom-in; transition: border-color .3s, transform .3s; align-self: start; }
.gallery .g-item:hover { border-color: rgba(47, 227, 195, .35); transform: translateY(-3px); }
.gallery .g-item img { width: 100%; }
.gallery .g-item figcaption { padding: 12px 16px; font-size: 12.5px; color: var(--text-2); border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 10px; }
.gallery .g-item figcaption span { font-family: var(--mono); font-size: 10.5px; color: var(--muted); }
.gallery .span-2 { grid-column: span 2; }
.gallery .g-stack { display: grid; gap: 18px; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(2, 4, 8, .92);
  display: grid; place-items: center; padding: 40px; opacity: 0; visibility: hidden; transition: .25s;
  backdrop-filter: blur(10px);
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 100%; max-height: 86vh; border-radius: 10px; box-shadow: 0 30px 100px rgba(0, 0, 0, .8); }
.lightbox button { position: absolute; top: 24px; right: 28px; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line-strong); font-size: 20px; color: var(--text); background: rgba(255, 255, 255, .05); }

/* ================= 购买条 ================= */
.shop-band {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 20px 24px; margin-bottom: 26px; border: 1px solid rgba(47, 227, 195, .28);
  border-radius: 16px;
  background:
    radial-gradient(420px 160px at 8% 0%, rgba(47, 227, 195, .14), transparent 70%),
    rgba(255, 255, 255, .025);
}
.shop-band .sb-left { display: flex; align-items: center; gap: 16px; min-width: 0; }
.shop-band .sb-24 {
  flex: none; width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  font-family: var(--mono); font-size: 14px; font-weight: 700; color: #04211d;
  background: var(--grad); box-shadow: 0 8px 26px rgba(47, 227, 195, .22);
}
.shop-band h3 { font-size: 16px; margin: 0 0 3px; }
.shop-band p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.7; }
.shop-band p b { color: var(--accent); font-weight: 600; }
.shop-band .sb-actions { display: flex; gap: 10px; flex-wrap: wrap; flex: none; }

/* ================= 定价 ================= */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card {
  border: 1px solid var(--line); border-radius: 20px; padding: 32px 30px;
  background: linear-gradient(165deg, rgba(255, 255, 255, .045), transparent 60%);
  display: flex; flex-direction: column; position: relative;
}
.price-card.featured {
  border-color: rgba(47, 227, 195, .38);
  background: linear-gradient(165deg, rgba(47, 227, 195, .09), rgba(69, 196, 246, .04) 50%, transparent 72%);
  box-shadow: 0 0 60px rgba(47, 227, 195, .13);
}
.price-card .badge-hot {
  position: absolute; top: -11px; right: 24px; font-size: 10.5px; letter-spacing: .1em;
  background: var(--grad); color: #04211d; font-weight: 700; padding: 4px 12px; border-radius: 999px;
}
.plan-head { display: flex; align-items: center; gap: 13px; margin-bottom: 13px; }
.plan-badge {
  width: 44px; height: 44px; border-radius: 11px; flex: none; display: grid; place-items: center;
  background: linear-gradient(145deg, #45c4f6, #3b82f6); color: #fff;
  font-size: 17px; font-weight: 700; box-shadow: 0 8px 24px rgba(59, 130, 246, .25);
}
.plan-head h3 { font-size: 19px; margin: 0; }
.plan-days {
  display: inline-block; margin-top: 4px; font-size: 10.5px; color: var(--muted);
  border: 1px solid var(--line); background: rgba(255, 255, 255, .03);
  border-radius: 999px; padding: 1px 8px; font-family: var(--mono);
}
.price-card h3 { font-size: 19px; margin-bottom: 5px; }
.price-card .pc-for { color: var(--muted); font-size: 12.5px; margin-bottom: 22px; }
.price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 24px; }
.price .cur { font-size: 17px; color: var(--accent); }
.price .val { font-family: var(--mono); font-size: 40px; font-weight: 700; letter-spacing: -.03em; }
.price .cycle { font-size: 12px; color: var(--muted); margin-left: 4px; }
.price-list { list-style: none; display: grid; gap: 11px; margin-bottom: 28px; flex: 1; }
.price-list li { font-size: 13px; color: var(--text-2); display: flex; gap: 9px; align-items: flex-start; }
.price-list li svg { width: 14px; height: 14px; color: var(--accent); flex: none; margin-top: 3px; }
.price-card .btn { width: 100%; }
.price-note { text-align: center; font-size: 12px; color: var(--muted); margin-top: 22px; }

/* ================= FAQ ================= */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 24px 4px; display: flex; align-items: center; gap: 14px;
  font-size: 15.5px; font-weight: 500; transition: color .2s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--accent); }
.faq summary .q { font-family: var(--mono); font-size: 11px; color: var(--accent); flex: none; width: 26px; }
.faq summary .plus { margin-left: auto; width: 22px; height: 22px; position: relative; flex: none; }
.faq summary .plus::before, .faq summary .plus::after {
  content: ""; position: absolute; background: var(--muted); transition: .25s; left: 50%; top: 50%; transform: translate(-50%, -50%);
}
.faq summary .plus::before { width: 12px; height: 1.5px; }
.faq summary .plus::after { width: 1.5px; height: 12px; }
.faq details[open] summary .plus::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq details[open] summary { color: var(--accent); }
.faq .a { padding: 0 4px 26px 44px; color: var(--text-2); font-size: 14px; line-height: 1.9; max-width: 900px; }
.faq .a code { font-family: var(--mono); font-size: 12px; background: rgba(255, 255, 255, .06); padding: 1px 6px; border-radius: 4px; color: #9df3e2; }
.faq .a a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }

/* ================= CTA ================= */
.cta {
  position: relative; margin: 40px auto 90px; border: 1px solid rgba(47, 227, 195, .24);
  border-radius: 26px; overflow: hidden; padding: 64px 56px;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(47, 227, 195, .16), transparent 65%),
    radial-gradient(600px 320px at 85% 100%, rgba(139, 140, 247, .14), transparent 65%),
    #070c15;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
}
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 42px 42px; mask-image: radial-gradient(ellipse at 50% 50%, #000, transparent 78%);
}
.cta h2 { position: relative; font-size: clamp(26px, 3vw, 40px); line-height: 1.25; margin-bottom: 12px; letter-spacing: -.02em; }
.cta p { position: relative; color: var(--text-2); font-size: 14.5px; }
.cta .actions { position: relative; display: flex; gap: 12px; flex-wrap: wrap; flex: none; }

/* ================= 页脚 ================= */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 34px; position: relative; z-index: 1; background: rgba(4, 7, 13, .6); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { color: var(--muted); font-size: 13px; line-height: 1.9; margin: 18px 0 20px; max-width: 300px; }
.footer-brand .f-meta { font-family: var(--mono); font-size: 10.5px; color: #5c6a7d; letter-spacing: .06em; }
.footer-col h4 { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-2); margin-bottom: 18px; font-weight: 600; }
.footer-col a { display: block; font-size: 13px; color: var(--muted); padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12px; color: #5f6d80;
}
.footer-bottom .fb-links { display: flex; gap: 20px; }

/* ================= 子页 Hero ================= */
.page-hero { padding: 148px 0 66px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero .container { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.page-hero h1 { font-size: clamp(34px, 4.4vw, 54px); line-height: 1.16; letter-spacing: -.03em; margin-bottom: 18px; }
.page-hero h1 em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-hero p { color: var(--text-2); font-size: 16px; line-height: 1.9; max-width: 570px; }
.page-hero .hero-actions { margin-top: 28px; margin-bottom: 0; }
.page-hero .shot-frame { transform: perspective(1600px) rotateY(-3deg); }
.crumbs { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--muted); margin-bottom: 22px; font-family: var(--mono); }
.crumbs a:hover { color: var(--accent); }
.crumbs span { color: #3d4a5d; }

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.pill { font-size: 11.5px; color: var(--text-2); border: 1px solid var(--line); background: rgba(255, 255, 255, .03); padding: 5px 12px; border-radius: 999px; }
.pill b { color: var(--accent); font-weight: 600; }

/* 模块清单 */
.module-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.module {
  padding: 22px 24px; border: 1px solid var(--line); border-radius: 14px;
  background: rgba(255, 255, 255, .02); display: flex; gap: 16px; align-items: flex-start;
}
.module .mi {
  width: 38px; height: 38px; flex: none; border-radius: 10px; display: grid; place-items: center;
  background: rgba(47, 227, 195, .07); border: 1px solid rgba(47, 227, 195, .16);
  font-family: var(--mono); font-size: 11px; color: var(--accent);
}
.module h4 { font-size: 14.5px; margin-bottom: 4px; }
.module p { font-size: 12.5px; color: var(--muted); line-height: 1.75; }

/* 登录界面画廊 */
.login-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.login-card { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #0a0f19; cursor: zoom-in; transition: border-color .3s, transform .3s; }
.login-card:hover { border-color: rgba(47, 227, 195, .35); transform: translateY(-3px); }
.login-card img { width: 100%; aspect-ratio: 4/3.05; object-fit: cover; object-position: top; }
.login-card .lc-body { padding: 14px 16px 16px; border-top: 1px solid var(--line); }
.login-card h4 { font-size: 13.5px; margin-bottom: 5px; display: flex; justify-content: space-between; gap: 8px; }
.login-card h4 span { font-family: var(--mono); font-size: 10px; color: var(--muted); font-weight: 400; }
.login-card p { font-size: 11.5px; color: var(--muted); line-height: 1.7; }
.login-card .tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 9px; }
.login-card .tags i { font-style: normal; font-size: 10px; padding: 2px 7px; border-radius: 4px; background: rgba(47, 227, 195, .08); color: #8ef0dd; }

/* 对比表 */
.compare { width: 100%; border-collapse: collapse; font-size: 13px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.compare th, .compare td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare th { background: rgba(255, 255, 255, .04); font-size: 12px; letter-spacing: .04em; color: var(--text-2); font-weight: 600; }
.compare tr:last-child td { border-bottom: 0; }
.compare td { color: var(--muted); }
.compare td:first-child { color: var(--text); }
.compare code { font-family: var(--mono); font-size: 11.5px; color: #9df3e2; }

/* 终端演示 */
.terminal {
  border: 1px solid var(--line-strong); border-radius: 14px; background: #070b12; overflow: hidden;
  box-shadow: var(--shadow); font-family: var(--mono);
}
.terminal .t-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--line); background: #0a0f18; }
.terminal .t-bar i { width: 8px; height: 8px; border-radius: 50%; background: #293244; }
.terminal .t-bar span { margin-left: 6px; font-size: 10.5px; color: var(--muted); }
.terminal .t-body { padding: 18px 20px; font-size: 12px; line-height: 1.9; color: #b7c4d6; }
.terminal .t-body .g { color: #63e6b0; }
.terminal .t-body .y { color: #f3cd82; }
.terminal .t-body .d { color: #5c6b80; }
.terminal .t-body .c { color: #8fe6ff; }

/* 提示条 */
.callout {
  display: flex; gap: 12px; padding: 16px 18px; border-radius: 12px;
  border: 1px solid rgba(69, 196, 246, .22); background: rgba(69, 196, 246, .06);
  font-size: 13px; color: var(--text-2); line-height: 1.8; margin: 20px 0;
}
.callout svg { width: 17px; height: 17px; color: var(--accent-2); flex: none; margin-top: 3px; }
.callout.warn { border-color: rgba(245, 190, 100, .22); background: rgba(245, 190, 100, .055); }
.callout.warn svg { color: #f5c46a; }
.api-hook {
  margin: 16px 0 4px; padding-left: 14px; border-left: 2px solid var(--accent);
  font-size: 15px; line-height: 1.75; color: var(--text); font-weight: 600;
}
.api-hook em { font-style: normal; color: var(--accent); }

/* ================= 滚动动效 ================= */
.reveal { opacity: 1; transform: none; }
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
html.js .reveal.in { opacity: 1; transform: none; }
html.js .reveal[data-delay="1"] { transition-delay: .08s; }
html.js .reveal[data-delay="2"] { transition-delay: .16s; }
html.js .reveal[data-delay="3"] { transition-delay: .24s; }

/* ================= 响应式 ================= */
@media (max-width: 1120px) {
  .hero .container-wide { grid-template-columns: 1fr; gap: 60px; }
  .hero { padding-top: 132px; }
  .hero-visual { min-height: 440px; max-width: 780px; }
  .hero-main-shot { width: 100%; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .doc-grid { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
  .nav-toggle { display: grid; }
  .header-right .header-ghost { display: none; }
  .site-header.nav-open .nav {
    display: flex; position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px; margin: 0; padding: 14px 24px 22px;
    background: rgba(6, 10, 18, .98); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px);
  }
  .site-header.nav-open .nav > a, .site-header.nav-open .nav-trigger { padding: 12px 8px; font-size: 15px; }
  .site-header.nav-open .nav a.active::after { display: none; }
  .site-header.nav-open .dropdown { position: static; opacity: 1; visibility: visible; transform: none; display: none; width: 100%; background: transparent; border: 0; box-shadow: none; padding: 0 0 8px 12px; }
  .site-header.nav-open .nav-item-dropdown:hover .dropdown { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .gallery .span-2 { grid-column: auto; }
  .security-band { grid-template-columns: 1fr; padding: 34px; }
  .page-hero .container { grid-template-columns: 1fr; gap: 44px; }
  .cta { flex-direction: column; align-items: flex-start; padding: 46px 34px; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .login-gallery { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1080px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
}

@media (max-width: 860px) {
  .duo-grid { grid-template-columns: 1fr; }
  .defense-grid { grid-template-columns: 1fr; }
  .market-hint { display: block; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-step:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .flow-step:nth-child(4) { border-top: 1px solid var(--line); }
  .doc-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .stat:nth-child(4) { border-top: 1px solid var(--line); }
  .module-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 78px 0; }
}

@media (max-width: 640px) {
  .container, .container-wide { width: calc(100% - 32px); }
  .feature-grid, .doc-grid, .pricing-grid, .login-gallery, .gallery-strip { grid-template-columns: 1fr; }
  .gallery-solo .g-item img { height: 220px; }
  .shop-band { flex-direction: column; align-items: flex-start; padding: 18px 20px; }
  .shop-band .sb-actions { width: 100%; }
  .shop-band .sb-actions .btn { flex: 1; }
  .price-card:last-child { grid-column: auto; }
  .site-header .container-wide { gap: 16px; }
  .header-right { gap: 8px; }
  .header-right .btn { padding: 8px 12px; font-size: 12.5px; }
  .brand-text span { display: none; }
  .brand-text b { font-size: 15px; }
  .hero { padding-top: 112px; }
  .hero h1 { font-size: 37px; }
  .h1-brand { font-size: 11px; letter-spacing: .22em; margin-bottom: 10px; }
  .market-callout { flex-direction: column; align-items: flex-start; gap: 10px; padding: 18px 20px; }
  .market-callout .mc-99 { font-size: 46px; }
  .hero-visual { min-height: 340px; }
  .hero-float.client { width: 44%; }
  .hero-float.badge-card { left: 0; bottom: 30px; padding: 10px 12px; }
  .hero-float.badge-card .ring { width: 34px; height: 34px; }
  .defense-foot { flex-direction: column; align-items: flex-start; }
  .attack-item em { font-size: 9px; padding: 2px 6px; }
  .hero-float.badge-card .ring svg { width: 34px; height: 34px; }
  .hero-notes { gap: 12px; }
  .pc-list { grid-template-columns: 1fr; }
  .cta { margin-bottom: 60px; padding: 38px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; }
  .security-points { grid-template-columns: 1fr; }
  .page-hero { padding-top: 118px; }
  .split { gap: 30px; }
  .flow { grid-template-columns: 1fr; }
  .flow-step { border-left: 0 !important; border-top: 1px solid var(--line); }
  .flow-step:first-child { border-top: 0; }
  .stat { padding: 22px 8px; }
}
/* 程序下载 */
.download-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 24px; align-items: start; }
.download-main, .side-card { background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018)); border: 1px solid var(--line); border-radius: var(--radius); }
.download-main { padding: 30px; }
.dl-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.dl-icon { width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; background: rgba(47,227,195,.09); border: 1px solid rgba(47,227,195,.22); color: var(--accent); flex: none; }
.dl-icon svg { width: 26px; height: 26px; }
.dl-kicker { font: 600 10.5px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.dl-head h2 { margin: 4px 0 0; font-size: 25px; letter-spacing: -.02em; }
.download-main > p { color: var(--text-2); font-size: 14px; line-height: 1.9; margin: 0 0 22px; }
.dl-file { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px; border: 1px solid rgba(47,227,195,.2); background: rgba(47,227,195,.035); border-radius: 12px; margin-bottom: 14px; }
.dl-file b { display: block; font-size: 14px; color: var(--text); }
.dl-file span { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.dl-file .btn.is-disabled { opacity: .5; pointer-events: none; filter: grayscale(.4); }
.dl-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 14px 0 22px; }
.dl-meta div { background: rgba(255,255,255,.025); border: 1px solid var(--line); border-radius: 9px; padding: 11px 12px; }
.dl-meta span { display: block; font: 600 10px/1.3 var(--mono); color: var(--muted); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 5px; }
.dl-meta b { font-size: 13px; color: var(--text); }
.download-main h3 { font-size: 17px; margin: 26px 0 10px; }
.download-main .steps-list { counter-reset: dl; list-style: none; padding: 0; margin: 0; }
.download-main .steps-list li { counter-increment: dl; position: relative; padding: 0 0 14px 38px; color: var(--text-2); font-size: 13.5px; line-height: 1.8; }
.download-main .steps-list li::before { content: counter(dl, decimal-leading-zero); position: absolute; left: 0; top: 1px; width: 24px; height: 24px; border-radius: 7px; display: grid; place-items: center; background: rgba(47,227,195,.1); color: var(--accent); font: 700 10px/1 var(--mono); }
.download-side { display: grid; gap: 14px; }
.side-card { padding: 22px; }
.side-card h4 { margin: 0 0 12px; font-size: 14px; }
.side-card ul { margin: 0; padding: 0; list-style: none; }
.side-card li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.05); font-size: 12.5px; color: var(--text-2); }
.side-card li:last-child { border-bottom: 0; }
.side-card li b { color: var(--text); font-weight: 500; }
.side-card p { color: var(--text-2); font-size: 12.5px; line-height: 1.8; margin: 0 0 12px; }
.download-hero .container { display: block; }
.download-hero-copy { max-width: 840px; position: relative; z-index: 1; }
@media (max-width: 900px) {
  .download-layout { grid-template-columns: 1fr; }
  .download-main { padding: 22px; }
  .dl-head h2 { font-size: 21px; }
  .dl-file { flex-direction: column; align-items: flex-start; }
  .dl-file .btn { width: 100%; }
  .dl-meta { grid-template-columns: 1fr; }
}